WO2007131685A2 - Dispensing device - Google Patents

Abstract

The invention relates to a dispensing device for dispensing a preferably cosmetic liquid. Said dispensing device comprises an elastic or flexible pump section which can deform in a reversable manner in order to pump the liquid. The dispensing direction is preferably opposite to the direction of actuation. Several pump chambers are preferably arranged about a central outlet valve. Said dispensing device is preferably arranged on the base of an associated container. The outlet valve or the dispensing opening is preferably only opened during the first actuation. The liquid is distributed through a preferably hollow valve element, which also forms a nozzle.

Description

 dispenser

The present invention relates to a dispensing device according to any one of the independent claims.

The term "dispensing device" in the present invention is to be understood in particular as meaning a metering pump or hand-operated pump for dispensing a preferably cosmetic fluid. However, it can also be any other dispensing device, such as a container, dispensing or spraying head, dispenser or the like, in particular for a cosmetic liquid act.

In a narrower sense, the term "cosmetic liquid" is to be understood as meaning cosmetics, hair spray, hair lacquer, a deodorant, a foam, a gel, a paint spray, a sunscreen or skin care agent or the like. But in a broader sense, other personal care products, cleaning products, o. The like., And also suspensions and fluids, in particular with gas phases comprises. Further, as other liquids, such as air freshener, and in particular also technical fluids and fluids, such as rust remover o. The like., Are used. However, for reasons of simplification and because of the focus of use, only cosmetic liquid is often referred to below.

WO 2004/073871 A2 discloses a dispensing device with several pumping chambers. Each pumping chamber is limited by an elastically deformable pumping part. These pumping parts can be deformed simultaneously by a common actuating element, in order to simultaneously be able to dispense different liquids via a likewise common outlet valve.

The present invention has for its object to provide a dispensing device that is universally applicable, simple design, robust, easy to use and / or in particular overhead is usable. The above object is achieved by a dispenser according to one of the independent claims. Advantageous developments are the subject of the dependent claims.

One aspect of the present invention is that the dispensing device dispenses the required liquid, in particular substantially in the middle and along the central or longitudinal axis of the dispenser, at least substantially opposite to the actuating direction. This allows a simple and compact structure and a universal applicability.

Another aspect of the present invention, which can also be implemented independently, is to provide a plurality of pump chambers with elastic or flexible pump sections in order to simultaneously be able to dispense the same fluid. In particular, the pump chambers are connected or connectable in parallel to a container containing the liquid. This allows a simple and robust construction. For example, the dispenser is still usable even if one of the pumps formed by the pump sections should fail, for example due to a non-opening inlet or outlet valve. Furthermore, the use of several pump sections or pumps allows a reduction in the volume of the individual pump chambers, so that in particular a smaller overall height is made possible.

If necessary, the pump sections or the pumps can also be actuated one after the other, for example over a relatively long period of time, and / or, with continued actuation of the dispensing device, enable a further dispensing or continuation of the dispensing of the liquid.

A further aspect of the present invention, which can also be implemented independently, provides for the dispensing device to be disposed at the bottom of a container in the state of use and / or the dispensing direction to be directed substantially vertically downwards. This in turn allows a very simple and robust construction. For example, a suction line can be omitted in the container. Further, the gravity of the emptying of the container and in particular a largely complete emptying of the container supported. Furthermore, this allows a very simple and intuitive operation, since the Abgabevorrich- tion or the pumping part in particular by depressing the dispenser and / or the container for dispensing the liquid is actuated.

Another independently practicable aspect of the present invention is that the dispenser has at least one spring member separate from the pumping member to assist or effect the recovery of the pumping portion. This allows a simple and robust construction and a particularly safe return of the pump section.

Another, also independently realizable aspect of the present invention is to form a valve element of the outlet valve of the dispenser hollow for dispensing or deflection of the liquid in the dispensing direction, in particular so that the valve element forms a dispensing or dispensing nozzle of the liquid dispenser. In particular, no further channel, head, dispensing nozzle or the like then adjoins the valve element. Rather, the discharge of the liquid takes place directly from the outlet valve or its valve element. This allows a particularly simple, robust and compact design. In particular, only a few parts are required, so that a simple and cost-effective production and assembly are possible.

Another independently feasible aspect of the present invention is that the dispensing device or its outlet valve or dispensing opening or nozzle is opened only upon first actuation. This allows a simple and uncomplicated handling, wherein in particular an undesired premature leakage of the liquid during storage or during transport can be prevented.

Another, independently practicable aspect of the present invention is to provide the dispenser with an opening means, so that when an associated container is replaced, it is opened by the opening means and a fluid connection to the inlet valve is established. This allows easy handling.

The proposed dispensing device can, for example, for air atomizers, Air Freshener or other applications, for example, for dispensing a medium from a flat glass, a cup, a bowl or the like. to be used. The dispenser can each directly into a bowl, a cup or the like. be used. The output can be done either in liquid and / or atomized form. If necessary, it is also possible to switch between the different types of output.

Further advantages, features, properties and aspects of the present invention will become apparent from the claims and the following description of a preferred imple mentation form with reference to the drawing. It shows:

1 shows a schematic section of a proposed dispensing device;

Fig. 2 is an enlarged detail of Fig. 1;

Fig. 3 is another enlarged section of Fig. 1; and

Fig. 4 is a further enlarged section of Fig. 1; and

5 shows a section corresponding to FIG. 1 of an embodiment variant of the dispensing device.

In the figures, which are not to scale, only schematic figures, the same reference numerals are used for the same or similar parts, with corresponding or comparable properties and advantages being achieved, even if a repeated description has been omitted.

Fig. 1 shows a proposed dispensing device 1, in particular in the form of a pump, for dispensing a preferably cosmetic liquid 2 in the aforementioned sense. The liquid 2 can be much higher than water viskos or possibly even pasty.

The dispensing device 1 is preferably associated with a container 3 for supply to the liquid 2, to which the dispensing device 1 is preferably releasably attached, or vice versa. Thus, if necessary, an exchange of the container 3 o. The like. And / or refilling the liquid 2 done. Alternatively, the Dispensing device 1 also form a reservoir for the liquid 2 or the container 3 itself.

In the illustrated example, the container 3 preferably has a collapsible bag 3a, in particular in a rigid container 3b. The container 3 or the container 3b is preferably detachably connected to the dispensing device 1 or vice versa. In particular, the container 3 is exchangeable or the dispensing device 1 can be used several times.

Fig. 5 shows a variant in a corresponding to Fig. 1 section. Instead of the inner bag, a displaceable piston 3c is arranged here in the container 3b.

When liquid 2 is removed, the bag 3a (FIG. 1) collapses or the piston 3c (FIG. 5) collapses. For this purpose, preferably the container 3 or the container 3b preferably has a ventilation opening 3d, the like, for example, from a label, not shown, or the like. can be covered, and accordingly not visible to a user. Alternatively or additionally, the ventilation opening 3d may also be apparent by the user or automatically by the first-time use of the dispensing device 1. Alternatively, the ventilation opening 3d can also be integrated into the dispensing device 1.

The dispensing device 1 is preferably designed in such a way that, when in use, it is arranged at the bottom of the container 3 and / or the dispensing device A runs essentially vertically downwards. However, the proposed dispensing device 1 can in principle be used in any orientation and / or with any dispensing direction A and / or together with other containers 3 or without container 3.

The dispensing device 1 particularly preferably has an opening means, in particular in the form of a piercing element 3e, in order to open the container 3, in particular its bag 3a or a closure of the container 3, such as a cover film 3f (FIG. 5) and thereby a liquid - Establish fluid or fluid connection between the container 3 and the dispensing device 1, so that the liquid 2 can be removed. Particular preference is given by the opening tel allows a very simple handling, since a placement or connection of the dispensing device 1 with the container 3 is sufficient to open the container 3 and connect fluidly.

The dispensing device 1 is preferably connected to the container 3 or container 3b screwed or latching connected. However, it is also possible that the dispensing device 1 is no longer detachable from the container 3 or container 3b. In this case, the dispensing device 1, for example, glued to it, welded and / or locked.

Hereinafter, the preferred construction of the dispensing device 1 will be explained in more detail with reference to FIGS. 2 to 4 in particular. Fig. 2 shows in an enlarged detail of Fig. 1, the dispensing device 1, but without liquid 2 and without bag 3a. Fig. 3 shows the dispensing device 1 in a different section. Fig. 4 shows the dispensing device 1 in a further section.

The dispensing device 1 preferably has a first component 4, a second component 5 and / or at least one preferably elastically deformable pump part 6 or an elastically deformable pump portion 6a, in the representation example three pump sections 6a. In the following, the focus is primarily on the preferred design and function of a pump section 6a. This preferably applies correspondingly to the further pump sections 6a.

The pump part 6 or second component 5 is preferably insoluble with the first component 4, liquid-tight and in particular gas-tight connected or connectable.

The first and / or second component 4, 5 is preferably rigid and / or in one piece, in particular of a suitable, preferably food-safe plastic, in particular a polyolefin, such as PP (polypropylene) or PE (polyethylene), sprayed or otherwise produced. In contrast, the pump part 6 or the pump section 6a is designed to be soft, flexible or elastically deformable. The second component 5 preferably serves for fastening or holding the pump part 6. The pump part 6 is particularly preferably formed by the second component 5 or formed on it or vice versa.

In the illustrated example, the second component 5 is preferably injection-molded onto the pumping part 6 or otherwise insoluble and fluid-tightly connected thereto. This allows a simple production, for example by the so-called "bi-injection", ie in particular injection molding of a further material in the same injection mold, in which a first material is formed. In particular, such a chemical and / or mechanical connection is made possible.

Alternatively or additionally, the second component 5 can be connected or held to the pump part 6 by an undercut, recess, opening, overlap or the like. Furthermore, the pump part 6 and the second component 5 can also be designed or manufactured as separate components.

Particularly preferably, a receiving or pumping space P for the liquid 2 is formed between the first component 4 and the pumping part 6 or pumping portion 6a or is delimited therefrom - at least partially.

Preferably, the pump portion 6a is formed at least substantially mandrel or hemispherical or curved and / or the first component 4 has a corresponding thereto or opposite, in particular recessed region 4a, to form the pump space P or limit. The preferably integrally formed pumping part 6 or second component 5 particularly preferably has several, in particular three, such pumping sections 6 a, which correspondingly form three pumping chambers P. The first component 4 preferably has correspondingly three recessed areas 4a, which are indicated in FIGS. 2 to 4 at least substantially dome-like.

In the illustrated example, preferably several or all pump chambers P are connected to the same or a common liquid reservoir and serve for pumping and conveying the same liquid 2.

The second component 5 is, as already mentioned, relatively rigid. In contrast, the pump part 6 or the pump parts 6 is or are at least the pump section 6a or the pump sections 6a - elastically deformable or flexible designed to allow the desired deformation to reduce the pumping space P or the pumping chambers P for pumping or conveying the liquid 2. The different materials are, as already mentioned, preferably connected to each other in such a way that ultimately a component is formed. This facilitates the assembly significantly. In particular, it is then sufficient to connect the second component 5 to the first component 4. This is preferably done by ultrasonic welding and / or in any other suitable manner.

The dispensing device 1 preferably has an inlet valve 7 and an outlet valve 8. Preferably, the pump member 6 forms together with the first component 4, the inlet valve 7 and / or outlet valve 8. However, the valves 7, 8 may also be formed separately. The valves 7, 8 are preferably designed as self-closing one-way valves.

If the pump space P is filled with liquid 2, starting from the rest or initial position shown in the figures, the volume of the respective pump space P can be reduced by deforming the associated pump section 6a, thereby displacing liquid 2 from the pump space P and outputting it , In particular, for this purpose preferably an actuating element 9, more preferably a surface carrying the dispensing device 1 (for example, in Fig. 2 indicated), a cap or the like, not shown., Moved in an actuating direction B relative to the first component 4, in particular by Nie- depressions the dispensing device 1 and the container 3 in the direction N, and thereby the pump portion 6a at least partially deformed and the pump space P reduced.

The outlet valve 8 or the nozzle 17 is preferably arranged at least substantially in the middle of the dispensing device 1 and / or between the pumping parts 6 and the pumping chambers P, respectively.

As already mentioned, the dispensing device 1 or at least one pump section 6a, particularly preferably several or all pump sections 6a, is actuated by depressing the dispensing device 1 or the container 3. However, it is also possible, for example, for the dispensing of liquid 2, to press an unillustrated user directly onto the pump section 6a or to press or act upon another object.

When the pump section 6a is deformed and the pumping space P is reduced, the liquid 2 is discharged via the outlet valve 8. The opening of the outlet valve 8 takes place in particular automatically, preferably due to the fluid pressure, and / or - possibly in addition - due to a corresponding deformation of the pump section 6a during actuation.

In the illustrated example, the outlet valve 8 is preferably arranged laterally next to the pump sections 6a, in particular in the middle.

The outlet valve 8 preferably has a valve element 10, which is in particular formed integrally with the pump part 6. The valve element 10 is preferably held in the illustrated example by a connecting portion 11 and preferably connected to the pump part 6. The connecting portion 1 1 surrounds the valve element 10 preferably annular or flanschar- term. The connecting portion 11 holds the valve element 10 preferably at an associated valve seat 12 of the exhaust valve 8. In the illustrated example, the valve seat 12 is in particular annular or formed as a cone ring. Particularly preferably, the valve seat 12 is designed as an end face of a closed-end recess 13 and / or formed by the first component 4, in particular formed therein.

The opening of the outlet valve 8 takes place in particular by axial movement of the valve element 10. This is possible in particular by elastic deformation of the connecting portion 11 or other variable areas.

The outlet valve 8 is preferably connected via a connecting channel 14 and / or a valve seat 12 radially outwardly, peripherally surrounding annular channel 15 to the associated pumping chamber P, preferably parallel to all pumping chambers P, connected. When pumping or actuating the pumping part 6 or the pumping element 6, liquid 2 present in the pumping chambers P is pressurized and leads, in particular, to such a deformation of the connecting part 6. Section 1 1, that the valve member 10 is lifted axially from the valve seat 12, so the exhaust valve 8 opens. The liquid 2 can then flow in particular radially into the recess 13.

The dispensing device 1 further preferably has an output channel 16 and / or a nozzle 17. Particularly preferably, the dispensing channel 16 and / or the nozzle 17 are formed by the valve element 10. In particular, the valve element 10 is designed to be hollow for this purpose and / or provided with a corresponding through-channel, in particular axially or in the direction of movement or in the discharge direction A. Instead of the preferably formed nozzle 17, in the illustrated example a flat nozzle, the dispensing device 1 or the outlet valve 8 or the valve element 10 may also have only one dispensing opening formed, for example, only by the dispensing channel 16.

When the outlet valve 8 is open or the valve element 10 is lifted off the valve seat 12, the liquid 2 flowing into the recess 13 is in particular deflected and dispensed through the valve element 10 or through the dispensing channel 16, a dispensing opening formed therefrom and / or the nozzle 17. In the illustrated example, therefore, in particular the outlet valve 8 or valve element 10 serves for an indirect dispensing or dispensing of the liquid 2. In particular, therefore, no further channels, deflections, dispensing catches or the like are closing. to the outlet valve 8 and its valve element 10, although this is in principle also possible and accordingly preferably should not be excluded.

Particularly preferably, the dispensing device 1 or its outlet valve 8 or the discharge opening or nozzle 17 is opened only at the first actuation. In particular, for example, the nozzle 17 is provided with a very thin wall 18 in the production in the region of its discharge opening or tip. Only at the first actuation or liquid output of the liquid pressure causes the said thin wall 18 tears open and thereby the nozzle 17 and the liquid dispensing or the cover device 1 is opened. However, other constructive solutions are possible here to achieve the desired effect. The dispensing direction A preferably runs at least opposite to the actuating direction B and / or at least substantially parallel to and / or in the center axis M of the dispensing device 1 and / or at least substantially parallel to and / or in the longitudinal axis L of the container 3 (see FIG . 1 and 2).

After the liquid discharge or corresponding drop in the fluid pressure in the pumping chambers P or in the annular channel 15, the outlet valve 8 closes again preferably automatically, in particular due to the restoring forces of the connecting portion 11. However, other design solutions are possible here. If necessary, a return spring or the like. be used.

After completion of the liquid dispensing - especially after completion of the depression of the container 3 or the dispensing device 1 or after releasing the container 3 or the dispensing device 1 - takes a preferably automatic resetting of the pump section 6a and the pump sections 6a in the in the Figures shown starting position, wherein new liquid 2 is taken via the inlet valve 7 and the inlet valves 7 in the pump chamber P and the pumping chambers P, in particular, is sucked. The opening of the intake valves 7 during the reset takes place in particular due to the pressure prevailing in the pump chambers P negative pressure.

According to a preferred aspect, the dispensing device 1 has at least one spring element 19, which is arranged and formed in particular separately from the pump section 6a or the pump sections 6a and directly on the actuating element 9 in the return direction R - that is resilient in the axial direction or actuation direction B - acts to assist or cause the return of the pumping section 6a and the pumping sections 6a, respectively.

Preferably, the spring element 19 is bow-shaped or arc-shaped. However, any other shapes are possible here as well.

Preferably, the height or axial extent of the spring element 19 substantially corresponds to that of the pump sections 6a and / or has the spring element 19 in the same direction or in the axial direction. Particularly preferably, the spring element 19 is arranged on the cover device 1, in particular the second component 5 or pump part 6, and in particular integrally formed therewith, preferably molded or sharpened.

Preferably, a plurality of spring elements 19 are provided, which are distributed in particular peripherally along the circumference of the cover device 1 and / or arranged diametrically opposite, that the dispensing device 1 - even with a very long and / or heavy container 3 or container 3b - a good stability having.

The spring elements 19 are particularly preferably arranged radially outside and / or around the pump section 6a or the pump sections 6a and / or the outlet valve 8.

In the illustrated example, the second component 5 has at least one preferably web-like projection 20, which engages in a groove 21 in the first component 4 and is connected to it in a liquid-tight manner, in particular by ultrasonic welding.

Particularly preferably, the second component 5 on the side facing away from the projection 20 and opposite a survey 22, which facilitates the placement of a transmission element, not shown, for ultrasonic introduction and thus a focusing of the ultrasound to the desired area to be connected. The formed liquid-tight connection extends in particular around the pump part 6 or the pump sections 6a.

In the illustrated example, preferably each pump chamber P is assigned a separate intake valve 7. In particular, for this purpose, in each case a valve seat region 23 with a valve opening 24 to the container 3 towards the reception of liquid 2 is formed on the first component 4 or on the regions 4 a. Furthermore, a valve flap 25 is preferably arranged on the pump part 6 or separately, in particular formed integrally therewith or formed by the pump part 6, and in particular spring-biased or resiliently biased against the valve seat area 23 for covering or closing the valve opening 24, as shown in FIG. 4 for a pump space P indicated. The valve flap 25 thus abuts the valve seat region 23 on the inside of the pump chamber P. When returning the pump sections 6a in the starting position shown in the figures, the exhaust valve 8 is closed. Accordingly, a negative pressure is formed in the pump chambers P, so that the valve tabs 25 open inwardly and thus release the valve openings 24, the intake valves 7 thus open. In the preferred arrangement of the dispenser 1 at the lower end of the container 3, the gravitational force is beneficial to the filling of the pump chambers P with the liquid 2 during the recovery. Furthermore, an at least largely complete emptying can be achieved.

If desired, additional channels 26 can be provided on the outside of the valve seat regions 23 in order to support the most complete possible emptying of the container 3.

Individual features and aspects of the various embodiments may often be combined with one another as desired or used in other dispensing devices or the like.

LIST OF REFERENCE NUMBERS

1 dispensing device 26 channel

2 liquid

3 container

3a bag

3b container

3c piston

3d ventilation opening

3e piercing element

3f cover film

4 first component A discharge direction

4a area B actuating direction

5 second component L longitudinal axis

6 Pump part N Depressing direction

6a pump section P pump room

7 inlet valve R return direction

8 exhaust valve

9 actuator

10 valve element

11 connecting section

12 valve seat

13 recess

14 connection channel

15 ring channel

16 output channel

17 nozzle

18 wall

19 spring element

20 advantage

21 groove

22 Survey

23 valve seat area

24 valve opening

25 valve lids

Claims

claims: 1. dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially 5 elongated or cylindrical container (3), with an elastic or flexible pump section (6a) which delimits or is fluidically connected to a pumping space (P) for the liquid (2), io with an inlet valve (7) associated with the pumping space (P) ), with an outlet valve (8) associated with the pump chamber (P), wherein liquid (2) can be pumped or pumped by reversibly deforming the pump section (6a) 15 and out of the pump chamber (P) via the outlet valve (8) in a discharge direction ( A) can be dispensed, in particular wherein subsequently liquid (2) in the pump chamber (P) via the inlet valve (7) by preferably automatic elastic return of the pump section (6a) receivable, preferably sucked, characterized in that in use the dispensing device (1) arranged at the bottom of the container (3) and / or the dispensing direction (A) is directed substantially vertically downwards 5, and / or that the dispensing device (1) or the pumping section (6a) by depressing the dispensing device (1) and / or the container (3) for dispensing the liquid (2) is operable. 0 2. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially elongated or cylindrical container (3), preferably according to claim 1, 5 with an elastic or flexible pump portion (6a) having a pump space (P) for the liquid (2) limited or fluidly connected to the pump chamber (P) associated with inlet valve (7), 0 with the pump chamber (P) associated outlet valve (8), wherein liquid (2) by reversibles Deforming the pump section (6a) pumpable or conveyable and out of the pump chamber (P) via the outlet valve (8) can be dispensed, in particular wherein subsequently liquid (2) in the pump chamber (P) via the inlet valve (7) by preferably automatic elastic return of the pump section (6a) receivable, preferably sucked, characterized in that the dispensing device (1) has a plurality of elastic or flexible pump sections (6a), which each form a pumping space (P) for the same liquid (2) and in particular are connected or connectable in parallel to the container (3), and / or that the outlet valve (8) is at least substantially in the Center of the dispensing device (1) and / or between the pump sections (6a) is arranged. 3. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially elongated or cylindrical container (3), preferably according to claim 1 or 2, with at least one elastic or flexible pump section (6a) which delimits or is fluidically connected to a pump chamber (P) for the liquid (2), with an inlet valve (7) associated with the pump chamber (P), with a pump chamber (FIG. P) associated with outlet valve (8), wherein liquid (2) by reversibly deforming the pump section (6a) in an operating direction (B) pumpable or conveyed and from the pump chamber (P) via the outlet valve (8) in a discharge direction (A) can be dispensed, in particular wherein subsequently liquid (2) in the pump chamber (P) via the inlet valve (7) by preferably automatic elastic return of the pump section (6a) receivable, preferably sucked, characterized in that the discharge direction (A) at least in essentially opposite to the actuating direction (B) and / or at least substantially parallel to and / or in the central axis (M) of the dispensing device (1) and / or at least substantially p Arall parallel to and / or in the longitudinal axis (L) of the container (3). 4. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially elongated or cylindrical container (3), preferably according to one of the preceding 5 standing claims, with an elastic or flexible pump portion (6 a) which limits a pump space (P) for the liquid (2) or is fluidly connected thereto, lo with a pump space (P) associated with the inlet valve (7), with a Pump (P) associated outlet valve (8), wherein liquid (2) by reversible deformation of the pump section (6a) in 15 an actuating direction (B) pumpable or conveyed and from the pump chamber (P) via the outlet valve (8) can be issued, in that an actuating element (9) in the actuating direction (B) is movable, wherein after the discharge of liquid (2) in the pump chamber (P) via the inlet valve (7) by preferably automatic elastic return of the pump section (6a) in Rückstellrich- 0 tion (R) receivable, preferably sucked, is, characterized in that the dispensing device (1) has at least one spring element (19), which 5 is arranged and formed separately from the pump portion (6a) and u acts directly on the actuating element (9) in the return direction (R) to assist or effect the return of the pumping section (6a). 5. Dispensing device according to claim 4, characterized in that the operating part (9) by a the dispenser (1) bearing surface is formed. 6. Dispensing device according to claim 4 or 5, characterized in that the dispensing device (1) has a plurality of spring elements (19) along a nes edge of the dispenser (1) and / or to the pump section (6a) or a plurality of pump sections ( 6a) or a discharge opening or the outlet valve (8) are arranged around. 7. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially elongated or cylindrical container (3), preferably according to one of the preceding claims, with a particular elastic or flexible pump portion (6 a), the a pumping space (P) for the liquid (2) is limited or fluidly connected to an inlet valve (7) associated with the pumping space (P), with an outlet valve (8) associated with the pumping space (P), one for opening the outlet valve (8) movable valve element (10), wherein liquid (2) by actuation, in particular reversible deformation of the pump section (6a) pumpable or conveyed and from the pump chamber (P) via the outlet valve (8) in a discharge direction (A) can be dispensed, in particular wherein subsequently liquid (2) in the pump chamber (P) via the inlet valve (7) by preferably automatic elastic return of the pump Pabschnitts (6a) is receivable, preferably sucked, is, characterized in that the valve element (10) hollow for particular immediate discharge of the liquid (2), in particular in the discharge direction (A) is formed, and / or a discharge opening or nozzle ( 17) of the dispenser (1) for the liquid (2). 8. Dispensing device according to claim 7, characterized in that the valve member (10) is formed substantially hollow cylindrical. 9. Dispensing device according to claim 7 or 8, characterized in that the valve element (10) automatically due to the upcoming fluid pressure, in particular by elastic material deformation, is apparent. 10. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially elongated or cylindrical container (3), preferably according to one of the preceding claims, with an in particular elastic or flexible pump section (6a), which delimits and is fluidically connected to a pump space (P) for the liquid (2), with an inlet valve (7) assigned to the pump space (P), with a pump space (P) associated outlet valve (8) having a valve member (10) movable to open the outlet valve (8), wherein liquid (2) by actuation, in particular reversible deformation of the pump section (6a) pumpable or pumpable and from the pump chamber (P) via the outlet valve (8) in a dispensing direction (A) can be issued, characterized in that the valve element (10) against the dispenser (A) is resiliently biased into a closed position and to open the exhaust valve (8) in the discharge direction (A) movable is. 11. Dispensing device according to one of claims 7 to 10, characterized in that the valve element (10) with open outlet valve (8) in the discharge direction (A) of the liquid (2) can be flowed through. 12. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), in particular from a preferably at least substantially elongated or cylindrical container (3), preferably according to one of the preceding claims, with a particular elastic or flexible pump portion (6 a), the a pump chamber (P) for the liquid (2) is limited or fluidly connected to the pump chamber (P) associated with inlet valve (7), with the pump chamber (P) associated outlet valve (8), in particular one for opening the Exhaust valve (8) movable valve element (12), wherein liquid (2) by actuation, in particular reversible deformation of the Pump section (6a) pumpable or conveyed and from the pump chamber (P) via the outlet valve (8) in a dispensing direction (A) can be dispensed, especially where then liquid (2) in the pump chamber (P) via the inlet valve (7 ) by preferably automatic elastic resetting of the pump section (6a) aufhehmbar, preferably sucked, is, characterized in that the dispensing device (1) or its outlet valve (8) or discharge opening or nozzle (17) is opened only at the first actuation. 13. Dispensing device according to claim 12, characterized in that the discharge opening or nozzle (17) by a thin, by the liquid pressure at Operation of the dispenser (1) revealable or destructible wall (18) is closed. 14. Dispensing device (1) for dispensing a preferably cosmetic liquid (2), preferably according to one of the preceding claims, with a preferably at least substantially elongated or cylindrical container (3) for storing the liquid (2), with a particular elastic or flexible pump section (6a), which delimits or is fluidically connected to a pump chamber (P) for the liquid (2), with an inlet valve (7) associated with the pump chamber (P), with an outlet valve (8) associated with the pump chamber (P) ), wherein liquid (2) can be pumped or conveyed by actuation, in particular reversible deformation, of the pump section (6a) and can be dispensed from the pump chamber (P) via the outlet valve (8) in a dispensing direction (A), in particular with 2) in the pump chamber (P) via the inlet valve (7) by preferably automatic elastic return of the pump section (6a) receivable, preferably sucked, is t, characterized in that the container (3) is exchangeable and that the dispensing device (1) has an opening means for opening the container (3) when connecting the dispenser (1) and establishing a fluid connection to the inlet valve (7) , 15. Dispensing device according to one of the preceding claims, characterized in that the outlet valve (8) forms a dispensing opening or nozzle (17) of the dispensing device (1) for the liquid (2). 16. Dispensing device according to one of the preceding claims, characterized in that the pump sections (6a) are formed from a single piece of material, in particular from a pump part (6) and / or sprayed together. 17. Dispensing device according to one of the preceding claims, characterized in that the pump sections (6a) are connected to the same outlet valve (8). 18. Dispensing device according to one of the preceding claims, characterized in that the container (3) has a collapsing bag (3) or a displaceable piston (3c) for the liquid (2). 19. Dispensing device according to one of the preceding claims, characterized in that each pump section (6a) forms the associated inlet valve (7) and / or outlet valve (8). 20. Dispensing device according to one of the preceding claims, characterized in that each pump section (6a) is at least substantially curved, in particular mandrel or hemispherical, is formed or has a region formed in this way.